System of selective control of remote-control switches.



P. T. MQNALLY.

SYSTEM OF SELECTIVE CONTROL OF REMOTE CONTROL SWITCHES.

APPLICATION FILED JUNE 10, 1918. 1,1 1%,019, P ented Sept. 29, 1914.

2 SHEETSSHEET l.

WITNESSES ATTORNEY RT. MONALLY. SYSTEM OF SELECTIVE CONTROL OF REMOTECONTROL SWITCHES.

APPLICATION FILED JUNE 10,1913.

Patented Sept. 29, mm.

2 SHEETS" SHEET 2.

WITNESSES ATTORNEY UNITED STATES PATENT OFFICE.

PHILIP THOMAS MGNALLY, OI DUNLAP, IOWA.

T val l :w'hom) it may concern:

Be it known that I, PHILIP T. MCNALLY,

a citizen of the United States, residing near 'mote-Control Switches,

Dunlap, in the county of Harrison and State of Iowa, have invented a newanc. useful System of Selective Control of Reof which the following is aspecification.

This invention has reference to improvements in a system of selectivecontrol of remote control switches, and its object is to provide a meanswhereby any desired number of remote control switches may bese-'eachremote control lectively controlled from ture associated with therelay to provide for the automatic coupling up of the control line tomore distant control devices, so that be taken as indicative of any 5 anoperator at thepower-house, which may point from which distant controlis desired, may, at will, cause the operation of the chosen one of thedistant control devices.

- The system has a wide range of use and f will be found especiallyadvantageous in connection with sign work and sub-station control forthe remote control switches may be made to work on any voltage andamperhe invention will be best understood from a consideration of thefollowing detailed description, taken in-connection with theaccompanying drawings forming part of this specification, with thefurtherund'erstanding'that while the drawings show a practical form ofthe invention, the latter is not'confined to any strict conformity withthe showing of the drawings, but may be changed and modified so long assuch changes and modification mark no material departure from thesalient features of the invention.

In the 'drawings:Figure 1 is a diagram --illustrating the presentinvention. Figs. 2,

3.4 and'5 are diagrams showing diiierent phases of operation of apolarizeduelay and contact members controlled thereby, as employed inthe present invention.

Referring to the drawings, there is shown in Fig. 1 two stations A and Bwhich may be taken as indicative of any suitable num-' ber of remotecontrol stations, while the Specification of Letters Patent.

Application filed June 10, 1913. Serial No. 772,906. w

my on snnnc'rrvn CONTROL or REMOTE-CONTROL swITcHEs. I

near control station is represented at C. 7 At the station G, which maybe a power house or other suitablepoint from which the stations A and Bare to be controlled, there is provided a source 1 of direct'currenusuchsource being indicated as an ordinary;bat tery, but any suitable sourcecapable of supplying a current such as is needed for the operation ofthe system, maybe provided.

The current source lis connected by conductors 2 and 3 to a circuitcontrolling device 4 shown asan ordinary double-pole doublethrow switchhaving double switchffarms 5,

6, respectively. and contacts 7, 8, Sand 10,

having cross connections'll between them. The contact 10' i's indicatedas" connected by a conductor 12 to ground in turn indicated at'13,whilethe contact 9 is connected by a conductor 14 to a switch arm 15 ofa double throw single-pole switch'having contacts 16, 17, respectively,which in turn arefconnected to respective conductors 18 and 19, the

conductor '18 being indicated by a dot and p dash line and theconductorl9 by 'a solid line simply for the'pu'rpose of distinction andhavlng no other significance.

'and B are alike and there may bej'more than two such stations. Adescription of one station will apply to both. At each station there isa con-' trol' magnet having two 'electro-magnets 2O The distant controlstations A ratented s t.2 9,1914.

and21 which for convenience of'mounting may have "a common support 22which should be of a non-magnetic material and may, therefore, be madeof brass, although such particular material is'not obligatory. Suitablymounted," as'by a" post 23 which may be secured to the support'22 or toany other support, is a lever made up of a permanent magnet'2-i and asoft iron member 25 connected together by astr'ap 26 of brass or othersuitable nonmagnetic material.

The part 24: being magnetized,is'thereby polarized and 'byprefe'rencethe end of this magnet constituting partofthe armature'of whatconstitutes the control magnet, has its north'pole presented toward themagnet 21 and its south' pole presented toward the pivot support '23 ofthe armature. Connect ed to the pivotal su'pportof the'armature is atrigger plate 27 a of non-magnetic materialysuch as brass, and ajlatchor trigger 28 'havingyaftaill piece 29 in the. path 'of thecorresponding: end of "the armature lever, while themagnet 21 carriesIT, I a v batch member 30 with which-"the trigger ma se- Thi controlmagnet may be substantially identi cal with the control magnet shown inLetters PatentvNo. 954,327 for an electric .cut:

out granted to me on April 5, 1910, and may she taken as indicativeofthestructure .set forth in the said Letters Patent without thenecessity of showing such structure in the present application, for theinvention of this "application has to do With the opera tionof thecontrol magnets to cause from a distant point the operationofthe"cut-out mechanisms. r The structure of the control magnet does 7notin itself form any'part-of the present 15 invention, and has onlybeen described to facilitate an understanding of the operation of thepresent invention.

Associated with eachcontrol magnet is a polarized relay made "up of'electromag go nets 31,532, which, like the control magnet,

may have a'com'mon support 33 of nonmagnetic material, preferably,"though not necessarily, brass, Extending from the \sup- 1 port '33 is apost 34 carrying an armature made up of a permanently magnetic section35and a soft iron part 36 Whiohmay be in line'one with "theother andconnected toge'th'er by a strap 37preferab1'y, though not necessarily,ofbrass. The magnet 35 and soft iron continuation 36 constitute anarmareasons 'Whichwill hereinafter appear, it is desirable thatthepermanenflmagnet -35 polarizing the, armature of the magnets 31' 35" and'32 have its south pole adjacent'th'e magnet 32 and its north poledistant therefrom, this being just the reverse'of the polarized section2401 the armature of the control magnet. The ol-arize'd relay is shownmore in detail in F igsQQ to 5. COIllbiIlG'd with the polarized -relayare'three spri'ng fingers 38 has a contact 449 presented toward the vcontact "42 and the finger' has a cqntact 45 presented toward-thecontact 43 and nor- 55 mally in engagement therewith; Thefinger-"flca'rries a pin" 46'Yof ins1ilating material ex ng h s a 'i' iagejf iie fitter? 39 and or aiengthito ordinarily "engage the" finger "38, thusmovingthe' fingers '38iai'id 46 ea apart a definitedistancedeterminedfby the may neuer approach closer than permitted 48having a tooth 49 arranged to be en- 'ture for the two magnets 31 and32.For

{ ized relay in 'o system'.

a sup ort a it their arm gaged bythe ii'ree end of the finger 39 whichmay be somewhat longer than the other fingers, and the armf18 has acontinuation 50 which under certain positions of the parts is in thepath of a roller. 51 ,0n 0ne end of an arm 52 carriediby and pro ectingfrom the armature of the magnets 31 and 32. The roller 51 may be ofinsulating material and the arm 48 if of metalmay be insulated from thesupport 33, as indicated at 53. The arm 4:8 is biased in one directionby a spring 5 1 connected at 55 to the support 33 andinsulatedtherefrom, all the'representa'tions of insulation being more or lessindicative of any manner of avoiding short circuits. I

' The conductor 18 is connected. to the finger 39 'of the relay of thefirst station A, While the finger 38 of the same relay is connected by aconductor '56 to thefinger 39 of the polarized relay of station E, andthe finger 33 'at station B is connected by a conductor 57 to the finger39 of the nextstation in order," a'nd this arrangement is "continuedthroughout the entire system.

The conductor 1.9 is connected to one end of the 'Windingofthe magnet31' or station A, while the other end of this magnet-is connected by aconducton58to' the opposite -end of the Winding'of'the magnet 20 of thecontrol. magnet at't'he'same station.

Theot'her endof the Winding of the magnet 20 of the control magnet ofstation A is connected by'a conduetorf-5'9 to one 'end' of the windin ofthe magnet 31015 the polarized relay 0 stationB, this being the same endof the magnet '31 as thatto which theconductor 19 is connectedat'fstation A. The

other end -offthe magnet 31' at stationB is connected by a conductor 6Otothe relatively opposite endof the windingof the magnetQO' of thecontrol magnet of station B,While the other end ofthis magnet isconnected a conductor 61" to the next polarrider, and soon throughoutthe e The finger 4O station A is connected to theflsame end of thewinding of the ma'gii t as; is the conductor {19" to the. Winding of themagnet"3'1," this connection being by ay of a conductor '62, whiletheother end 'of'theyvinding ofthe magnet 32' i'sfconnectedb'y'ac'onducto'r 63tothe'end of the magnet 21,0l the control magnet atstation A' opposite to the connection .ofzthe, cone ductor 58 "to theWindingbf the magnet 20 of the same control magnet. The bt'her end ofthe offinagnetfll is connected by a "coiiiiiictor' f64 t6 the"condiictor '59., The

finger flO st'atibn connected 'a conductoi 65. to ff-send M me qwiadirr"of the magnet. 32 fat swee ie tl'1'e' san' e I anner the an sromsstatibhfAandthe windinfg' of the ma net 32 isf conne'ted z u ductor66 to 516 winding of he magnet 21 at the same station in the same manneras at station A and the otherend of the winding oi the magnet 21 isconnected by a conductor there is a ground connection 68. 1

. 1 Let it he assumed that itis desired to with the contact:17,thusbringing the line 67 rto the conductor 61. .This same order ofconnections is continued throughout the systernand rat the fartherendofthesystem opcrate the instrument at station A only. :The

switch arm l 5 1is:1n0vecl until in engagement conductor 18 in circuit.with 1 the 1 contacts 8v and 9 of the switch 4. .The switch arms 5 and6. are now-moved in aproperdi-rect'ion to cause a south pole=po1ar1ty tobe developedin themagnet 21 at the end facing the north pole of thepermanent magnet 24 at station A. At the same time there will be f asouth pole developed in the magnet 32 at the end adjacentthe south poleof the permanent magnet This will cause only 5 the electro-magnet 21 atstation A. to attract a. itsaarmature, it being understood that thefingers. 39 and .40 have their contacts 43 vand 45 ;in engagement, sothat there is a circuit est'abl-ished from the battery 1 to theconductor 14, and thence. by .Way of the .switch arm and .contacth17'tothe conductor 18, through the finger 39 to the finger 40, thence by Wayof the conductor 62 .through the magnet :32, by way of the conductor 63through the-magnet 21 to the conand finally to the ground v68,vreturning by ductor 64, thence by Way of the magnet 31 at station B toconducto-r.60, thence by Way of, magnet at station Bto conductor 61theiground 13 to the conductor 12- and back to..the battery 1 throughthe switch 4; Al-

.thoughthe magnets 31 and 20 at station B become active they. simplyhold their arma- .tures in theinactiverposition and so "noth-,ingzioccurs at station B, since the magnets g1311and-20 havemopolarized armatures and consequently onlyattract their soft ironarmatures strohglycThe result of all this is that the :control magnetatstation A becomes active to cause the operation of the cut-out underthe influence of the control magnet at stat1on-'A,While*the othercontrol 'magnets along the; line are not affected. To

restore the linezto its-first condition it is 1 only necessarytocthrowthe switch arm 15 intoengagementiwith the contact 16 whichfbroken,.-.so that thema'gnet 20 :becomes-ac- I thereupon brings theconductor 19 into circuit sending current through the magnet =31,.Whichhaving an unpolarized armature 36 only: causes the latter tozbe morevigor ously' attracted, while the. circuit continues throughv thec0nductor= 58 by'way of the magnet 20 and to the-conductor 59 and so on:as. before. The magnet-s32 and 21 are wnoW demagnetized since theircircuitis Qtive to the. nonpolarized portion 25 -01 the 1 65. armature0f the control magnet at station 38, while the contacts 43 and A,rthusrocking it until it is in engagement with the magnet20. Suppose, now,that it is desired to operate the cut-out at station B. Theswitch-M11115 is moved to brin the conductor 18 into circuit, but theswitch arm of the controller t is thrown in a direction to couple up thebattery 1 in such a manner that a north pole will be developed in themagnet 32, whereupon the armature 3'5 is attracted, since the end of thepolarized armature vadjacent the magnet 32 is of south polarity, Whilethe magnet 21 is energized in a manner to repel its a mature so thatthelatter is not attracted at all. Th

.energization of the magnet '32 at station A in the manner described,causes the rocking member 35 reaches the corresponding end of the magnet32 the-spring finger 39 has passed beyond the tooth 49 and the springoeeauses the arm-48 to move until the tooth 49 hassnapped behind theextended end of the finger 39, this last position being indi= catedi'nFig. 4. The contact 44 of the spring tfingeri38 is still maintained outof engage; ,ment with the contact 42 because of the pin 48. Nowonthrowing switch arms 5 and 6 in the reverse direction, the circuitthrough the magnet 32 is broken and its armature moves away under theaction of the spring finger through the arm 52, thus permit ting thecontact 44 on the finger 38 to engage the contact 42 onthe finger 39,the said finger 39 being locked by th tooth 49. When the switch 4 ismanipulated to close the circult in the properdif'ection through theconductor 18,-thecurrentpasses by way of the fin er 39 to the'finger38,;and thence by way 0 the conductor 56 to the finger 39 at station B,the current new establishing a south pole in the magnet 32 'at station B-to repel the'armature34 from its magnet and establishing a-south polein the-magnet -21 of the control magnet causin theat traction of itsarmature 24 and t eo-pei'attion of the cut-out'at station B. To operatesuccessive stations, station B may be cut out by manipulation of theswitch 4 -to. actuate the relay switch in'-the'- man'ner alreadydescribed with reference to station -A- and then the next station in"orderrnay "be so coupled up that its control magnet can be operated,and so on throughout the system. When it; is desiredto restore theparts" the switches 4 and 15 are 's'ounafiifiii? listed that, theeonauetor- 19 'is ma ma;

its

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35 rent throughthepctive magnetsv at will, and means associated witheach polarized relay What is Claimed whereupon all the magnets 31 becomeactive to attract the respective armatures, and each -arm 52 is rocked,so that the roller 51 is brought into engagement withthe prolongation"of the arm 48 and the armis in turn rocked against the action of thespring 54 until-the tooth 49 is out of the path of the finger 39 and thelatter snaps back into netic control means at 'each'distant station, apolarized relay associated with each of said remote control means, meansunder the control of each polarized relay for directing current tothenext control station in order,

and means for causing current toflow in the -desi'recl direction throughthe polarized relay tocause thelatter; to operate or to -remainquiescent, at will.

2. A-system for the-selective control of remote control switches,comprising polarizedcontrol magnets each at a distant station, apolarized relay associatedwith each control magnet,'-the polarized relayand the polarized control magnet having active magnets in series andrestoring magnets in semes, dlfierent circuit 00111166310118 for eachgroup of magnets, means for directing current-to either set of'magnets,at Will,-means for contro'llingthe direction of flow ofcuri for cuttingout the active magnets at the sta- .3. A system of selective control ofremotecontrol switches, comprlsing a controlmag- .tion where the relayis located and coupling "up the control line of the next station inorden net and-a polarized relay associated there.

.with at each distant station, each control magnet and polarized relayassociated there-- I with comprising two separate electromag nets, anarmature common to, both electro:

magnets and polarized with respect to one of those electromagnetsnon therelay and .control magnet active-to the respective polarized armaturesbeing connectedlin series,

v andthe other electromagnets belng also conv nected in series, meansunderthe control of thearmaturc of the polarized relay for 'cut ting theassociated controlunagnet out of circuit, and means for energizingthemagiluets having the polarized armatures to produce therein differentpolarities, at will.

4. A system of selective control of remote nCOIltIOl switches,comprisinga control magnet and a polarized relay associated there- 1with ,at each distant station, .each control magnet and polarized relayassociated there- 65.

with comprising two separate electromagnets, an armature common to bothelectromagnets and polarized with respect to one of them, thoseelectromagnets on the relay and control magnet active to the respectivepolarized armatures being connected in series and the otherelectromagnets being also connected in series, means under the controlof the armature ofthe polarized relay for cutting the associated controlmagnet out of circuit, and means for energizing the-mag netshaving thepolarized armatures to produce therein different polarities, at will,the system also including means for directing current through all theelectromagnets controlling the nonpolarized portions of the armaturessimultaneously throughout the system. a

5. A systemfor-the selective control of remote control switches,comprising a series of sets each including a controlmagnet havingseparate electromagnets, andan armature common to both and polarizedwith'rcspect to one of the magnets, and a polarized relay associatedwith the control magnet and also including separate electromagnets withanarmature common to both and polarized with respect to one of theelectromagnets, and means associated 'with each polarized relay forcutting thecontrol magnet out of circuit.

- -6; A system for selective control of remote control switches,comprising a main control station and remote control statlons,

veach remote controlstation including a con,- trol magnet havingseparate electromagn'ets and an armature common to both and polar .izedwith respect to one of the electromagnets, and-a: polarized relay havingseparate electromagnets and an armature common to both and polarizedwith respect to oneof the i magnets, conductors c extending from thefirst-named control station, one conductor being normally connected tothe electromagnets of-the relay and control magnet acting on thepolarized portion ofthe armature,

and each succeeding station having a like connection with the precedingpolarized relay provided with means for coupling up the saidelectromagnets with the line, means at the first-named control stationfor causing the actuation of the polarized relays to couple upsuccessive stations, as desired, and

cut-out the control magnet of the preceding stations, circuitconnections from the first- 'na med stationto all the electromagnets ofall thestations other athanxthose acting on thepolarized portions bfthearmatures, and means for directing current through the lastnamed circuitconnections to energize the last-named'magnetsa 7, Ina system of.selective control of remote control switches, a polarized relaycomprising separate electromagnets, a pivoted armature common to .both.and having the portion.=responsive to onezof. the magnets circuit andswitching the line connections away therefrom.

8. In a system of selectlve control of remote control switches, apolarized relay pro vided with separate electromagnets, a pivotedarmature common to both and having a polarized section individual to oneof the magnets, separate connections for energizing the magnets, andmeans for shifting the circuit connections to cut out the magnet actingon the polarized section of the armature.

9. In a system of selective control of re mote control switches, apolarized relay provided with separate electromagnets, a pivotedarmature common to both and having a polarized section individual to oneof the magnets, separate connections for energizing the magnets, andmeans for shifting the circuit connections to cut out the magnet actingon the polarized section of the armature, said circuit shifting meanscomprising a series of three associated s ring fingers with oneintermediate of the ot ers and normally in contact with one of saidothers, the finger normally contacting with the intermediate fingerbeing provided with means for en aging the third finger to hold it inspace relation thereto, a holding device for engaging the intermediatefinger when moved in one direction, and means controlled by the armaturefor causing movements of the fingers to engage the intermediate fingerand a movement of the holding device to disengage the intermediatefinger in accordance with the direction of movement of the armature.

10. In a system of selective control of remote control switches, apolarized relay comprising separate electromagnets with separateelectric connections, a pivoted armature common to both magnets andhaving apolarized section individual to one magnet, and means forcutting out the magnet to which the polarized section of the armature isindividual, comprising a series of three associated spring fingers withone intermediate of the others and in normal electrical contact with oneof said others, means carried by the said outer finger for moving theother outer finger, an arm having a tooth thereon in the path of theintermediate finger and having a normal constraint theretoward, and anarm carried by the armature in position to engage the first-named outerfinger to move the other fingers on the rock- 'mg of the armature towardthe magnet controlling the polarized section of the armature to causethe latching of the intermediate finger behind the tooth on thefirstnamed arm, and said first-named arm having a part in the path ofthe second-named arm to be moved by the latter out of the path of theintermediate finger on the rockmg of the armature in a direction awayfrom the magnet controlling the polarized end of the armature.

11. In a system of selective control of remote control switches, apolarized relay comprising separate electromagnets, a pivoted armaturecommon to both magnets and provided at one end with a polarized sectionand at the other with a nonpolarized section, means for energizing themagnet controlling the nonpolarized section of the. armature, means forenergizing the magnet controlling the polarized section of the armature,and means controlled by the armature for cutting the last-named magnetinto and out of circuit in accordance with the direction of rocking ofthe armature.

r 12. In a system of selective control of remote control switches, apolarized relay comprising separate electromagnets, an armature commonto both magnets having one end attracted by one of the magnetsirrespective of its polarity and the other end polarized, separatecircuit connections for the respective magnets, and circuit controllingmeans for the second-named .magnet controlled by the armature andrelated thereto to cut the second-named magnet out of circuit when thearmature is in one posi-- t1on and to restore it to the circuit when thearmature Is in another pos1t1on.

;In testimony, that I claim the foregoing as my own, I have heretoaflixed my signature in the presence of two witnesses.

PHILIP THOMAS MoNALL Y.

Witnesses: v

DANIEL Monmson, LAPSLEY W. Horn.

Copies of this patent may he obtained for five cents each, by addressingthe Commissioner of Istents,

Washington, TD. 0.

